基址

foundation / footing / base / ruins (of a historical building)

(bound form) base; foundation / (bound form) radical (chemistry) / (bound form) gay (loanword from English into Cantonese, Jyutping: gei1, followed by orthographic borrowing from Cantonese)

location / site / foundation of a building

foundation of a building (variant of 址[zhi3]) / islet (variant of 沚[zhi3])